CSV Preview & Quick Edit — Chrome Extension
Last updated: April 6, 2026
CSV Preview & Quick Edit is a Chrome extension that lets you open, view, sort, filter, edit, and export CSV files directly in your browser. All CSV processing happens entirely within your browser — your data never leaves your machine.
The extension stores the following data locally on your device using Chrome's storage APIs:
This extension requests only the minimum permissions needed to function:
Allows the extension to interact with the currently active tab when you click the extension icon. Used to detect CSV files open in the browser. The extension only accesses the tab you explicitly interact with — never background tabs or your browsing history.
Saves your extension settings (delimiter preference, rows per page, theme), recent files list, and Pro license status locally on your device. Sync storage is used only for license status so it follows you across Chrome installations.
Used to schedule periodic Pro license verification checks (every 30 minutes). This ensures your Pro status stays active without requiring manual action. No user data is transmitted — only the anonymous device ID is sent to verify the subscription.
The extension also includes a content script that runs on pages with CSV file URLs (*.csv, *.tsv). This script only checks whether the page contains raw CSV text and shows a banner offering to open it in the viewer. It does not modify, collect, or transmit any page content.
chrome.storage.local API — this data stays on your device.chrome.storage.sync — this syncs across your Chrome browsers through your Google account.| Service | Purpose | Data Shared |
|---|---|---|
| Stripe | Pro subscription payment processing | Payment details (handled directly by Stripe — we never see your card number) |
| SendSimple (self-hosted) | Optional email subscription | Email address (only if you opt in) |
| Amazon SES | Email delivery | Email address (only if you opt in) |
| License API | Pro license verification | Anonymous device ID only |
We do not sell your personal data to any third party.
Pro subscriptions are processed through Stripe, a PCI-DSS Level 1 certified payment processor.
If you are in the EEA, UK, or Switzerland, you have the right to:
Request a copy of data we hold about you.
Request deletion of your personal data.
Receive your data in a machine-readable format.
Object to processing of your personal data.
Contact us at support@peakproductivity.online to exercise these rights. We respond within 30 days.
Our services are not directed to individuals under 16. We do not knowingly collect personal information from children.
Questions about this privacy policy? Contact us: